Laser surgical device and method of its use

Details Laser surgical device and method of its use Laser surgical device and method of its use

A - Human Necessities

61

B

A61B 18/20 (2006.01) A61B 18/22 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2248180

A laser surgical device (10) for vaporization of a living tissue consists of an operating laser assembly (22, 24, 26, 28, 30, 32, 34), a detecting an arrangement (48), and a control unit (14). The operating laser assembly generates an operating beam having a predetermined wavelength corresponding to a peak absorption wavelength of water. The detecting arrangement is adopted for detecting a condition of an operated living tissue by receiving and reviewing a signal reflected from the operated living tissue so as to produce a control signal. The control unit controls characteristics of the operating beam based on the control signal, so that the depth of vaporization of the living tissue does not exceed 15 microns to 20 microns.

Cette invention concerne un instrument de chirurgie au laser (10) destiné à la vaporisation de tissus vivants et constitué d'un ensemble opératoire au laser (22, 24, 26, 28, 30, 32, 34), d'un ensemble de détection (48) et d'une unité de commande (14). L'ensemble opératoire génère un faisceau opératoire de longueur d'onde préétablie correspondant à la longueur d'onde d'absorption maximum de l'eau. L'ensemble de détection est conçu pour détecter une condition du tissu vivant opéré au moyen de la réception et de l'étude d'un signal réfléchi par ledit tissu vivant opéré aux fins de la production d'un signal de commande. L'unité de commande vérifie les caractéristiques du faisceau opératoire sur la base du signal de commande, de façon à ce que la profondeur de vaporisation du tissu vivant n'excède pas 15 à 20 microns.

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